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Groups > sci.physics.relativity > #625707
| From | Sylvia Else <sylvia@email.invalid> |
|---|---|
| Newsgroups | sci.physics.relativity |
| Subject | Re: The Helical Path Paradox |
| Date | 2023-12-14 08:42 +1100 |
| Message-ID | <ktumq8Fs8psU2@mid.individual.net> (permalink) |
| References | <500ab0c4-e0fd-4dd9-8e00-6654a154e0cen@googlegroups.com> <ktt9krFi5muU1@mid.individual.net> <myh1ZN0cYChxNx75f1BAqGEN5eE@jntp> |
On 14-Dec-23 3:03 am, Richard Hachel wrote: > Le 13/12/2023 à 09:51, Sylvia Else a écrit : >> On 12-Dec-23 5:19 pm, patdolan wrote: >>> Proxima Centauri is 4.2 light-years away from Big Ben. Two distant >>> observers A and B are racing past Proxima Centauri on their way to >>> Big Ben at .867c relative to the Big Ben--Proxima Centauri frame of >>> reference. For these two observers Proxima Centauri and Big Ben are >>> only 2.1 light-years apart due to Lorentz contraction. Both observers >>> also note that the little hand of Big Ben rotates only 365.25 times >>> per year of their proper time instead of 730.5 rotations, due to >>> Lorentz time dilation. Now this slowing of Big Ben is not some >>> illusion or artifact of speed. SR assures us that Big Ben REALLY IS >>> RUNNING SLOWER in their frame of reference. >>> >>> Just as observer A passes Proxima Centauri he begins to count the >>> 365.25 x 2.1 = 767 turns in the helical path of light emanating from >>> the tip of Big Ben's little hand, which lie between Big Ben and >>> Proxima Centauri at any given moment in that frame of reference. He >>> also counts the 2.42 x 365.25 = 884 additional turns that Big Ben >>> produces during the rest of his 2.42 year journey to Big Ben, for a >>> total of 1651 turns during the entire trip. > > > This is an interesting problem. > So I will answer it. > This will change all the relativistic nonsense that I notice on the > English and French forums in general, > where absolutely no one understands the theory correctly. > > > >> The observer has to consider where Big Ben was in his frame when the >> light he's just seeing set out. Big Ben is now 2.1 light years away in >> his frame, but it is moving, and the light has taken some time to >> arrive, so the light he's just seen must have left Big Ben when it was >> more than 2.1 light years away. >> >> If we let the distance away that Big Ben was when the light departed >> be d, we can see that the time that Big Ben took to get from distance >> d to its present position of 2.1 light years must equal the time it >> took for the light to get from distance d to the observer. That is: >> >> (d - 2.1) / v = d / c >> >> where v = is 0.867c, and c = 1. >> >> (d - 2.1) / 0.867 = d / 1 >> >> d - 2.1 = 0.867 * d >> >> d * (1 - 0.867) = 2.1 >> >> d = 2.1 / ( 1 - 0.867) >> >> d = 15.79 >> >> So in the observer's frame the light has taken 15.79 years to arrive, >> and there are many more than 2.1 years worth of rotations between Big >> Ben and the observer. >> >> Sylvia. > > > Everything you say seems very interesting, even logical. > Only, my very dear and remarkable Sylvia, like everyone else, you do > mathematical physics, but abstractly. > The universe is not made LIKE THAT. > > R.H. This thread is about the theory of special relativity. Pat has alleged that it contains a contradiction, because he got the math wrong. Whether the theory properly describes the universe is a separate issue. Sylvia.
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The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-11 22:19 -0800
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-12 11:28 -0800
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-12 17:55 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-13 19:51 +1100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-13 05:12 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-14 08:40 +1100
Re: The Helical Path Paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-13 05:19 -0800
Re: The Helical Path Paradox Ryker Habibulaev Balanda <enaa@brdaaeea.ye> - 2023-12-13 13:32 +0000
Re: The Helical Path Paradox Richard Hachel <r.hachel@frite.fr> - 2023-12-13 16:03 +0000
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-13 09:50 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-14 08:42 +1100
Re: The Helical Path Paradox Richard Hachel <r.hachel@frite.fr> - 2023-12-13 22:32 +0000
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-13 16:22 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-14 11:30 +1100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-13 16:52 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-14 11:56 +1100
Re: The Helical Path Paradox Richard Hachel <r.hachel@frite.fr> - 2023-12-14 00:55 +0000
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-14 12:02 +1100
Re: The Helical Path Paradox Richard Hachel <r.hachel@frite.fr> - 2023-12-14 01:27 +0000
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-14 12:58 +1100
Re: The Helical Path Paradox Athel Cornish-Bowden <me@yahoo.com> - 2023-12-14 13:56 +0100
Re: The Helical Path Paradox Richard Hachel <r.hachel@frite.fr> - 2023-12-14 14:45 +0000
Re: The Helical Path Paradox Athel Cornish-Bowden <me@yahoo.com> - 2023-12-14 18:17 +0100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-14 10:03 -0800
Re: The Helical Path Paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-13 17:00 -0800
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-14 12:07 -0800
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-14 12:49 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-15 11:10 +1100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-14 19:21 -0800
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-14 19:23 -0800
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-14 19:33 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-15 15:07 +1100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-14 20:40 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-15 16:07 +1100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-15 00:26 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-15 19:45 +1100
Re: The Helical Path Paradox "Paul B. Andersen" <relativity@paulba.no> - 2023-12-15 14:45 +0100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-15 12:06 -0800
Re: The Helical Path Paradox "Paul B. Andersen" <relativity@paulba.no> - 2023-12-16 10:24 +0100
Re: The Helical Path Paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-16 01:47 -0800
Re: The Helical Path Paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-15 13:37 -0800
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-16 13:20 -0800
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-17 16:13 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-18 11:25 +1100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-17 16:48 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-18 13:09 +1100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-17 18:31 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-18 14:14 +1100
Re: The Helical Path Paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-18 06:29 -0800
Re: The Helical Path Paradox "Paul B. Andersen" <relativity@paulba.no> - 2023-12-18 20:43 +0100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-18 06:19 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-19 09:59 +1100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-18 15:28 -0800
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-19 11:01 +1100
Re: The Helical Path Paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-19 10:28 +0000
Re: The Helical Path Paradox Sylvia Else <sylvia@email.invalid> - 2023-12-19 21:37 +1100
Re: The Helical Path Paradox Volney <volney@invalid.invalid> - 2023-12-19 01:03 -0500
Re: The Helical Path Paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-18 21:17 -0800
Re: The Helical Path Paradox "Paul B. Andersen" <relativity@paulba.no> - 2023-12-15 14:45 +0100
Re: The Helical Path Paradox patdolan <patdolan@comcast.net> - 2023-12-15 11:28 -0800
Re: The Helical Path Paradox "Paul B. Andersen" <relativity@paulba.no> - 2023-12-16 10:24 +0100
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